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Note 16 - Customers | 12 Months Ended
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Dec. 31, 2012
Segment Reporting Disclosure [Text Block] |
16. | Customers
The following table shows contract revenues generated from the Company’s customers that accounted for more than 10% of revenues (dollars in thousands):
| Years Ended December 31, |
| 2012 |  |  | 2011 |  |  | 2010 |
| Amount |  |  | % |  |  | Amount |  |  | % |  |  | Amount |  |  | % |
Texas Department of Transportation (“TxDOT”) |  | $ | * |  |  |  | * | % |  | $ | 75,818 |  |  |  | 15.1 | % |  | $ | 95,198 |  |  |  | 20.7 | %
Utah Department of Transportation (“UDOT”) |  |  | 100,658 |  |  |  | 16.0 |  |  |  | 144,398 |  |  |  | 28.8 |  |  |  | 120,492 |  |  |  | 26.2 |
California Department of Transportation (“Caltrans”) |  |  | 94,171 |  |  |  | 15.0 |  |  |  | * |  |  |  | * |  |  |  | * |  |  |  | * |
*Represents less than 10% of revenues At December 31, 2012, the North Texas Tollway Authority (“NTTA”) owed $8.8 million to the Company, which is greater than 10% of contract receivables. At December 31, 2011, UDOT owed $8.8 million to the Company, which is greater than 10% of contract receivables. At December 31, 2010, TxDOT ($10.8 million), UDOT ($10.1 million), and the Utah Transit Authority ($9.6 million) each owed balances to the Company greater than 10% of contract receivables.

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